fixing ping-service

temp/ping-service/build.gradle.kts

@@ -54,6 +54,11 @@ dependencies {
     // Spring Cloud Consul for service registration and discovery
     implementation(libs.spring.cloud.starter.consul.discovery)
 
+    // === Caching ===
+    // Caffeine cache for Spring Cloud LoadBalancer (resolves production cache warning)
+    implementation("com.github.ben-manes.caffeine:caffeine")
+    implementation("org.springframework:spring-context-support")
+
     // === Resilience & Fault Tolerance ===
     // Resilience4j Circuit Breaker for fault tolerance
     implementation(libs.resilience4j.spring.boot3)

temp/ping-service/src/main/resources/application.yml

@@ -25,12 +25,17 @@ management:
       probes:
         enabled: true
   tracing:
-    enabled: true
+    # Disable tracing by default to avoid Zipkin connection errors
+    enabled: ${TRACING_ENABLED:false}
     sampling:
-      probability: ${TRACING_SAMPLING_PROBABILITY:1.0}
+      probability: ${TRACING_SAMPLING_PROBABILITY:0.1}
   zipkin:
     tracing:
-      endpoint: ${ZIPKIN_TRACING_ENDPOINT:http://zipkin:9411/api/v2/spans}
+      # Only configure endpoint if tracing is explicitly enabled
+      endpoint: ${ZIPKIN_TRACING_ENDPOINT:http://localhost:9411/api/v2/spans}
+      # Configure timeout and connection settings to handle missing Zipkin gracefully
+      connect-timeout: 1s
+      read-timeout: 5s
 
 # Resilience4j Circuit Breaker Configuration
 resilience4j: